Paper-trimmer.



E. PIERCE @a W. U. GOLTHAR.

PAPER TRIMMER.

APPLICATION FILED PEB. B, 1909.

mam Api. 5, ww.

N L@ @Y Wall peper :incl 'riezes, :incl

peecetion or etters Eaten-t.

Application e February i909.

Serial No.

,To oil whom it may concern.'

Be it known that we, losoon and 'Winmx ll. Comrren, both citizens the United States, residing it Springelo, in the county of Clark und Stute o lGhio, have invented certain new enel useful lniprovements in uperi 'immer-s, or which the following is u speciiicution.

lblur invention relates te peper trimmers enel particularly to devices ttor entf' irregular outlines in peper, zioric er snniler materiel.

rEhe implement is more especially adapted to the use or peper hangers enel lccor lo tor trinnning irregular outline iignres or 'tor out-liningornamental stencils, but is equally applicable to other purposes, such us, cutting patterns o'lI various sorts und siinilar uses.

rllie object of the structure as well as the means und inode of operation or such implements whereby they will not only he cheapenecl in construction, but will he inore etiicient in use, incre easily operated, and unlikely to get out or repair. i

With the above priniury und other incilentzil objects in View, as will niore fully eppour in the specilicutiou, the invention consists or the tentures of construction, the parts und combinations thereof, enel the inocle oic operation, or their equivalents, es hereinafter fully (lescrioel and set Jforth in the claims.

lie'erring to the drawings, -ligure l is uy perspective View or the iinplenoent in use, together with the .driving connections therefor. Fig. 2 is u vertical sectional View of the iinpleniei'it. Eig. 2l is e perspective View of theupper end ol' the reciprocating plunfve'r. Fig. -il is :t sectional perspective View of the driving` heml. Fig. 5 is e sectional View illustrating the method. or engaging unil (lisengnging the reciprocting` plunger :incl the driving heucl. ,lF 6 is e plein View of the lower casing ineniher showing the reciprocutingv plunger in place with the upper enrl thereof orolen away. l encl ure rlruivn substuntiully sise While il, e, 5, nul t3 ure subst ntiellif' clouhle t ie invention is to simplify tinuous coin groeve 7.

Lile parts are indicate-cl hy simil-er eherect rs reference throughout the sever-el views.

'-he inplen'ient ornrng the snioject umtter thereof is adapted o eut peper, fabric, or similar materiel, upon irregular lines hy tracing` seid lines Wim, the point or the in'iplenient, such us following the outline et .flowered as shoi'l in i with the point er the is eceoniplisgerl hy the nieve nient el: the stylus, which nieves e very high rate or' s peecl, forming thereby row or illier-orations, the intliviluel perfor-ations heinso closely located es to 'e continuous cut, severing the materiel.

ln constructing the implement, there is employed` o, separable casing comprising un upper casing ineniher l und e lower easing nien'ioer 2 screw threaded together et Elli-thin the upper casing member l is provided n cheniber in which is located :i revolulole zictuetino' head i from which projects :i driving shert 5 preferably form-eel integral therewith :incl journelecl in the casing nieinher l. llie actuating heed is proviolcrl with a centrelrhore 6 Within the interior periphery of which is formed u conihe plane of seul cuni groove is angular er inclined to the axis oitx rotation of the actuating heeel 1i.

iocateo-Within the lower casing ineniher 2v is o reciprocating plunger 8, the upper end o1" which pr 3 ots Within the central here 5 ot' the actuating heucl Li, und is provided Wit-h :t laterally projecting,` stucl 9 which enthe cern groove T or saicl actuating heeel. rlhe upper extremity et the plunger 8 is recessed or reduced as et l0. Vihis formation of the extremity ot' the plunger is to facilitate the assembling or the implement @nfl permit the reduced portion or the plum ger and the stucl 9 thereon to he introduced Within the here (l oi` the actuating henri #i as shown in Fig. 5, zitter which the plunger 8 is moved laterally es shown 1oy clo-tt-ecl lines in Eig. 5, causing' the stud Sl engage Within the cem groove 7 of the actuating heed, l' latere.` troni the reciprooeti 8 is e spline or 'teather fri i u t f iher "lie plunger in'. 1 .i

slot i2 ni ne stylus. he cuttingaction engagement of the spline 11 in the slot 12 prevents rotation of the plunger 8, permitting only a reciprocatory movement thereof. At its lower extremity, the plunger 8 carries a stylus 13 removably engaged therewith in any suitable manner, such as a taper chuck, or which may be, if desired, formed integral with the plunger 8. At its upper extremity, the revoluble shaft 5 of the actuating head 4 is screw threaded as at 14k, whereby it is engaged with the terminal of a flexible driving cable 15, the casing of said cable 15 being screw threaded into the socket 1G of the member 1. The flexible drive cable 15 may be connected to any suitable motive power, preferably to an electric motor, as indicated at- 17.

In operation, the implement is connected direct to the motor or other motive power, by the cable 15, which, through the shaft 5, causes the actuating head 4 to revolve at a high rate of speed. The stud 9 of the plunger 8 engaging the cam groove 7 of said connecting head causes the plunger 8 to reciprocate within the member 2, said plunger being prevented from rotating' by the spline 11.

In the drawings, the cam groove 7 has been shown as extending in a single plane whereby the plunger 8 is reciprocated once for each rotation of the actuating head 4. It is obvious that the cam groove 7 might be formed unalined within the head 4 whereby the plunger 8 might be given two or more reciprocatory movements during each rotation of the head.

lVhen in use, the outlines of the figure or pattern to be cut out are traced with the stylus 18, which being/reciprocated ata very high rate of speed, as stated, causes a series of perforations in the material. rIhe speed of the stylus being proportionately greater than the speed with which the implement is moved over the outlines of the pattern, the perforations made b the stylus will be so closely placed as to orm a continuous cut separating the pattern or irregular figure from the stock material.

The implement is also adaptable for use as a perforator for perforating pounce patterns and similar purposes. lVhen used as a perforator, the speedwith which the stylus is reciprocated is very materially reduced in its ratio with the speed with which the stylus is moved over the outlines of the figure, thereby placing the perforations made by the stylus at greater distance from each other.

The shaft 5 is provided with a transverse hole 18 through which may be inserted a pin thereby enabling the shaft to be more tightly screwed into the terminal of the flexible cable 15.

Oil ducts are provided at 19 in each of the casing members 1 and 2. In order to substantially combination facilitate the engagement of the casing members 1 and 2, said members are each knurled as at 20.

From the above description it will be apparent that there is thus produced a paper trimming device adapted to trim figures of irregular outlines, which possesses the partieular features of advantage before enumerated as desirable, but which obviously is susceptible of modifi-cation in its form, proportion, detail construction, and arrangement of parts, without departing from the principle involved, or sacrificing' any of its advantages.

Having thus described our invention we claim: f

1. In an implement for cutting irregular outlines in paper or similar material, the combination with an actuating motor and a fiexible drive shaft, of a housing, a re'voluble actuating head within said housing, having a central bore, and a cam groove in the inner periphery of said bore, a reciprocating plunger extending within said bore, a lateial projection on said plunger engaging said cam groove whereby the revoluble movement of said actuating head will cause a reciprocatory movement of the plunger, a stylus carried by said plunger and adapted to perforate the stock material in predetermined lines traced by said stylus, substantiallyas specified.

2. In an implement for cutting irregular outlines in paper or similar material, the combination with an actuating motor and a flexible drive shaft, of a separable housing one of the housing members having' a chamber therein, a revoluble actuating head in said chamber having a cam 'groove formed therein. a reciprocatory plunger in the other housing member, engaging said cam groove of the actuating head whereby the revoluble movement of the head will cause a reciprocatory movement of housing member having a slide formed therein and a projection rigidly fixed on said plunger engaging said slide, and movable therein with the movement of said plunger whereby said plunger will be permitted a reciprocatory movement only and will be held b v the engagement of said projection within said slide against the revoluble movement,

as and for the purpose specified.

3. In an implement for cutting irregular outlines in paper or similar material, the with an actuating motor and a iexible drive shaft, of a housing, a revoluble actuating head within said housing having a "centralbore, a cam groove within the inner periphery of said bore, a reciprocating plunger `its-upper end being of reduced thickness', said reduced port-ion of the plunger extending within the central bore of said eoeee head, u projection carried by the reduced ln testimony whereof, We have hereunto portion of he plunger and engaging the set our hands this 30th day of January A. B. 1o

interior earn groove of the eotuamng head, 1909.

said plunger being laterally inovable Within RSCGE PERCE.

' the bore o said head whereby the projection VVYLLM U. COLTH'R.

thereon may be disengaged and engaged`- YVtneSses: with said cam groove, substantially as Spee- HARRY R. HARFORD,

fied. v l v YV. H.' GRrFFI'rI-L 

